Duplex-horn seam-closing mechanism.



Y J. KOHKE.

DUPLEX HORN BEAM CLOSING MECHANISM.

APPLICATION FILED MAY 18,1908.

Patented Dec. 13, 1910. Z@ 2 Z SHEETS-SHEET 1 1110M): Jofizv Kala Ye BM, 2M2, en/ 76M- m: NHRRIS Ph'xns co., was-moron, 0 c

zenof the United States,

JOHN KOHKE, OF ATLANTA,

NEW YORK,

GEORGIA, ASSIGNOR T0 AMERICAN CAN COMPANY, OF N. Y., A CORPORATION OF NEW JERSEY.

DUPLEX-HORN SEAIVI-CLOSING MEGHANISM.

Specification of'Letters Patent.

Patented Dec. 13, 1910.

Application filed May 18, 1908. Serial No. 433,339.

To all whom alt-may concern:

Be it known that I, JOHN Korma, acitiresiding .in Atlanta, in.the county of Fulton andState of :Georgia, have invented a new and useful Improvement in Duplex-Horn Seam-Closing Mechanism, of which the following is a specification.

My inventionrrelates to duplex horn seam closing devices.

The object of my invention is toProvide a duplex horn seam closing device. by means of which lock side seamsupon the bodies of sheet metal pails or vessels may be conveniently formed either upon the inside or outside of the vessel.

My invention consists in connection with the horn, bumper and edge folding dies, of a fixed gage secured to the horn, a movable spring supported gage and an intermediate gage having a movable or adjustable fixed support for use in forming a lock seam on the outside of the can body, and which is adapted to be released or withdrawn so that this intermediate gage may move with the spring supported gage when it is desired to do inside grooving or form the lock seam upon the inside of the vessel.

My invention further consists in the novel construction of parts and devices, and in the novel combinations of parts and devices herein shown and described.

In the accompanying drawing forming a part of this specification, Figure 1 is a front elevation of the duplex horn edging and seam closing machine embodying my invention. Fig. 2 is a side elevation. Fig. 3 is a vertical cross section on line 33 of Fig. 2 and Fig. 4 is a vertical longitudinal sect-ion on line 4-4 of Fig. 3. Fig. 5 is a similar view to Fig. 3 showing method of forming inside seam.

In the drawing, the machine.

B is the duplex grooving horn.

C is the reciprocating slide, D D the edge folding dies and D the seam closing die.

The duplex grooving horn B is provided with a fixed gage b,

A represents the frame of a yielding or movable spring supported gage b and intermediate combined yielding or spring supported and fixed or stationary supported gage for use according as it is desired to form the groove for the lock seam upon the inside or upon the outside of the vessel. The fixed gage b is removably secured to the horn by set screwsb. The movable spring supported gageJ) is preferably supported upon four coiledsprings-b, and it isprovided with a stop shoulder b to engage a corresponding stop shoulder I) on the horn .B. The combinedmovable olnfixed intermediate gage b is preferably yieldingly supported upon tom-coiled springs?) when it is desired to do .inside groovingor form the lock seam upon theiinside of the vessel, and it is with drawnor let down as a fixed gage whcnit ,is desired. to do outside grooving or form the lock seam upon the outside of the vessel by means of a holding down pin or rod 71 connected therewith by screw threads I), and which holding down rod is furnished with a threaded nut b which fits in a socket b in the horn B. The nut 5 is furnished with slots 1) to receive a socket spanner wrench F for unscrewing the nut b.

In operation, to do outside grooving and form the lock side seam m of the can body X upon the outside of the body, the nut b is turned so as to cause the holding down pin or rod 12 to hold the combined fixed and movable gage b withdrawn and in fixed position on the horn B. To do inside grooving and form the lock side seam or upon the outside of the can body, the nut 6 is unscrewed, thus leaving the intermediate gage b free to move with the movable gage b and to act as a yielding gage.

The seam closing die D is provided on its under face with a groove (Z for receiving the lock seam of the body X when it is formed on the outside; and the fixed gage b is provided with a groove or channel I) on its upper face to receive the lock seam of the can body when it is formed upon the inside of the can body.

I claim 1. In a duplex horn edging and seam closing machine, the combination with the horn and edge folding and seam closing dies having a groove on the under face to receive a lock scam when formed on the outside, of a fixed gage having a groove on its upper face to receive the lock seam when formed on the inside, a movable spring supported gage and an intermediate gage adapted to not either as a movable or as a fixed gage, substantially as specified.

2. The combination with a horn, of a die having a groove on its under face to receive an outside formed lock seam, of a fixed gage having agroove on its upper face adapted to receive an inside formed. lock seam, a movable gage and an intermediate gage adapted to' act either as a movable gage or as a fixed gage, substantially as specified.

3. The combination With a horn, of a fixed gage, a movable gage and an intermediate gage adapted to act either as a movable gage or as a fixed gage, springs for supporting said movable gage, springs for supporting said intermediate gage as a movable gage and means for fixing said intermediate gage in its retracted position, substantially as specified.

4. The combination with a horn, of a fixed gage, a movable gage and an intermediate gage adapted to act either as a movable gage or as a fixed gage, springs for supporting said movable gage, springs for supporting said intermediate gage as a movable gage and means for fixing said intermediate gage in its retracted position, said means consisting in a holding down pin or supporting said movable gage, springs for supporting said intermediate gage as a mov able gage and means for fixing said intermediate gage in its retracted position, said means consistingin a holding down pin or rod furnished with a threaded nut foruretracting said intermediate gage, said horn having a socket to receive the threaded nut of the holding down pin or rod, substantially as specified.

T. H. STEWART, O. S. COOK. 

